How do I make h.264 work on YouTube on Firefox on Windows 7 64 bit?
- by Ansis Malins
Various news articles state that Firefox supports h.264 on Windows since version 20. As of this writing the version is 24, yet Firefox still can't play most YouTube videos. I did the HTML5 opt-in and tested both Firefox and Nightly. I also made sure media.windows-media-foundation.enabled in about:config is enabled, and it is by default both on Firefox and Nightly.
What's wrong and how do I fix it?
Edit:
This video works.
This video fails.
They're both MP4 (right click video - stats for nerds), so Firefox's h.264 support works at least some of the time.
Edit:
When I go to a YouTube video that doesn't work, click Share - Embed and then copy-paste the src of the iframe tag into the address bar, the video works.